build-and-test.yml built a full APK on every master push without running
sync-android-sources.sh, so it used the wrong (Tauri-default) sources, was
unsigned, and duplicated the ~15min build that build-release.yml does properly
on tags. Replace it with cargo check --target aarch64-linux-android (~1min),
which catches Android Rust breakage without linking, bundling, or signing.
The signed release APK remains a tag-only artifact from build-release.yml.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
The monochrome adaptive-icon layer produced a poor themed-icon rendering.
Remove the <monochrome> reference from mipmap-anydpi-v26/ic_launcher.xml and
delete the ic_launcher_monochrome.png files so Android always uses the color
adaptive icon (background + foreground). sync-android-sources.sh also drops any
monochrome layer Tauri regenerates.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
